Class IO
In: lib/phusion_passenger/utils.rb
Parent: Object

Methods

Public Instance methods

Writes all of the strings in the components array into the given file descriptor using the +writev()+ system call. Unlike IO#write, this method does not require one to concatenate all those strings into a single buffer in order to send the data in a single system call. Thus, writev is a great way to perform zero-copy I/O.

Unlike the raw writev() system call, this method ensures that all given data is written before returning, by performing multiple writev() calls and whatever else is necessary.

  io.writev(["hello ", "world", "\n"])

Like writev, but accepts two arrays. The data is written in the given order.

  io.writev2(["hello ", "world", "\n"], ["another ", "message\n"])

Like writev, but accepts three arrays. The data is written in the given order.

  io.writev3(["hello ", "world", "\n"],
    ["another ", "message\n"],
    ["yet ", "another ", "one", "\n"])

[Validate]